No - I kept the bottom loop, which is attached (from the factory) to a steel (powdercoated, or painted) bracket.
At the bottom end (where the belt bolts to the floorpan), I had to cut the sleeve (slightly) so the painted bracket can sit flat on the floor, and the seat belt webbing is rotated so the belt is oriented straight up. The rest of the plastic bracket rests on the carpet, and forces the seat belt to stand up vertically.
It will be obvious once you get your hands on one and look at it in the car.
Pictures 4 & 5 (counting from the top) try and illustrate it.
Thanks for the compliments.